Church, Hillyfields Summer Fayre, Saturday football training, birthday parties (hosted at McDonalds, community centre etc) - it was racially mixed. I did not see or feel any animosity. I suppose some just had very different experiences which has cultivated a different mentality.
It's largely down to the context that one has been raised within. I am not instinctively "racial" but it may because my parents are not from same ethnic group. In addition, the area where I grew up was ethnically diverse. Just saw people of different races interacting tbh.